311020200213 has 16 divisors (see below), whose sum is σ = 415222004736. Its totient is φ = 207082770800.

The previous prime is 311020200167. The next prime is 311020200251. The reversal of 311020200213 is 312002020113.

It is a cyclic number.

It is not a de Polignac number, because 311020200213 - 2³⁶ = 242300723477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311020200192 and 311020200201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311020200013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7758820 + ... + 7798802.

It is an arithmetic number, because the mean of its divisors is an integer number (25951375296).

Almost surely, 2^311020200213 is an apocalyptic number.

It is an amenable number.

311020200213 is a deficient number, since it is larger than the sum of its proper divisors (104201804523).

311020200213 is a wasteful number, since it uses less digits than its factorization.

311020200213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43224.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 311020200213 its reverse (312002020113), we get a palindrome (623022220326).

The spelling of 311020200213 in words is "three hundred eleven billion, twenty million, two hundred thousand, two hundred thirteen".